20551016

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{173}}^1\times {\mathrm{479}}^1$

素因数の和:689

約数の個数: 32

約数和(自身を含む): 40089600

約数和(自身を除く): 19538584

約数列:

[1, 2, 4, 8, 31, 62, 124, 173, 248, 346, 479, 692, 958, 1384, 1916, 3832, 5363, 10726, 14849, 21452, 29698, 42904, 59396, 82867, 118792, 165734, 331468, 662936, 2568877, 5137754, 10275508, 20551016]

約数ペア:

[(1, 20551016), (2, 10275508), (4, 5137754), (8, 2568877), (31, 662936), (62, 331468), (124, 165734), (173, 118792), (248, 82867), (346, 59396), (479, 42904), (692, 29698), (958, 21452), (1384, 14849), (1916, 10726), (3832, 5363)]